Explains the implementation options for subtypes

https://knobit.org/id/knobit/K-652

Context functions	Object understanding
Knobit creation methods	AI generated
Knobit types	Knowledge
LCG purposes	Assessing the learner's knowledge or skill state
LCG purposes	Opening up a learning outcome
action verb	Explains en
assessment criterion	Chooses an implementation for sample subtypings and names the constraints to restore en
assessment method	Written question with sample physical tables en
conforms to profile	https://oppekava.edu.ee/a/Knobitite_kirjeldamise_ja_seostamise_reeglid#LCG-KNOBIT-0.1
dcterms:identifier	K-652
dcterms:license	https://creativecommons.org/licenses/by/4.0/
dcterms:source	Data-management practice used by the stage 6 reference and review checklist en
depends on knobit	Explains supertype and subtype constraints
expected result	Roll up, roll down or one table per type, and the constraints each loses en
owl:sameAs	https://bitbucket.org/reffa/ontology/id/knobit/data-modelling/06-physical/K-652
rdfs:label	Explains the implementation options for subtypes en
schema:creativeWorkStatus	accepted
schema:isPartOf	Data modelling (DAMA-DMBOK2)
skos:definition	Roll up, roll down or one table per type, and the constraints each loses. en
skos:prefLabel	Explains the implementation options for subtypes en
target object	subtype implementation en

Used by

applies knowledge	Recognises rolled-up subtypes losing conditional constraints
applies knowledge	Recognises rolled-down subtypes losing supertype constraints
includes knobit	Designs a physical data model for the target platform without introducing anomalies
includes knobit	Physical data model
includes knobit	Abstraction
includes knobit	Forward engineering - physical data modelling
requires knobit	Design the physical data model